CLAS physics database search results Measurement E62M184 E-94-005 CLAS experiment L. Elouadrhiri 2006 phi(pi-) dsigma/dphi_pim Data errors deg mcbn/rad mcbn/rad 45 0.50422931 0.15294872 135 0.55689919 0.10264045 225 0.46124983 0.16729647 315 0.90058476 0.17140952